Iron



FIG. 1 is a perspective view of an iron showing a first embodiment of our new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a front view thereof,

FIG. 5 is a top plan view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is a bottom plan thereof.

The broken lines shown in the drawings represent portions of the iron that form no part of the claimed design. 

The ornamental design for an iron, as shown and described. 